Cunning General Si Ning - Chapter 3: Rebirth

Shao Xuan joins a friend in his expedition to a recently discovered archaeological cave. After he picks up an ordinary looking stone he is teleported to a different world and wakes up in the body of a small orphan child. The world he is in now is still in its stone age with primitive tools made of stone and the ways of the people are savage. Savage isn’t the only thing special about the people though, because they have superhuman strength, jump higher than trees and punch stones. In short, they are able to cultivate their bodies. Despite all this, it is a real struggle to survive because of the scarcity of food. Together with Caesar, his pet wolf, he tries to survive in this cruel world.

- Description from novelupdates

Mu Yangling was reborn into a hunter’s family, and she expected to live a simple and happy life.However, a disaster almost shattered their home.His father was conscripted into the army because of a war, and the whole family had to follow and settle in a farming village.Unfortunately, they couldn’t even distinguish the seedlings of the five grains.As Mu Yangling looked at her mother and younger brother, who were on the verge of tears, she straightened, lifted her head, and said, “It’s okay. I have strength.”She also had some agricultural knowledge from a thousand years later!

The world was once at war with 10 alternate worlds. This was known as the Concept War and our world won 60 years ago. All of this was concealed so no normal people are aware of this fact in the current time.

After the death of his grandfather, the high-school student Sayama Mikoto is suddenly summoned by the giant corporation IAI. He learns this world is headed for destruction due to the acceleration of the Minus Concepts. To prevent this, negotiations must be undertaken with the survivors of the other parallel worlds so their 10 concepts can be released.

And so Sayama is caught up in the final battle to clean up after the Concept War which left behind so much enmity.